from markdown_or_html.html_content import html_content1, html_content2

html=html_content1
html=html_content2

import tkinter as tk
from tkhtmlview import HTMLScrolledText

root = tk.Tk()
root.geometry("780x640")
html_label = HTMLScrolledText(
    root,
    html=html
)
html_label.pack(fill="both", expand=True)
html_label.fit_height()
root.mainloop()